题目内容：

判断下列句子是否正确,不对的改正（英语题）
Has he sell his old car?
Mr.Smith has always been a good teacher.
He has been several countries.
Jim returned to home at nine o'clock last night.
You'd better comes bake before ten o'clock.

优质解答

第一句：sell改sold,因为是已经完成时
第二句：always去掉,因为always是一个持续的状态
第三句：been改成gone to,因为been是一个状态,是不能代表去过
第四句：to去掉,因为Home前是不能加介词的
第五句：comes改成come,因为有这么一个词组had better do sth